Siblings Evan and Jessie must solve the mystery of a missing cherished family treasure while coming to terms with their beloved grandmother's unsettling behavior.

Guardians of the 39 Clues, Dan Cahill and his sister Amy discover that the serum is missing and must race against time to get it back before catastrophe strikes.

"Explores the distinctive power of poetry and love--fourth grade style"--

Amy and Dan cross the oceans on the trail of a famous aviator, but they find more than they're looking for. Their enemies are becoming more vicious, and the truths they discover more crushing than ever.

Frustrated at life with an autistic brother, twelve-year-old Catherine longs for a normal existence but her world is further complicated by a friendship with a young paraplegic.

Evan and his younger sister, Jesse, react very differently to the news that they will be in the same class for fourth grade and as the end of summer approaches, they battle it out through lemonade stands, each trying to be the first to earn 100 dollars. Includes mathematical calculations and tips for running a successful lemonade stand.

Charlie, twelve, who has autism and obsessive compulsive disorder, must endure a cross-country trip with his siblings and a strange babysitter to visit their father, who will undergo brain surgery.

Catastrophes and misfortune continue to plague the Baudelaire orphans after they're sent to live with fearful Aunt Josephine who offers little protection against Count Olaf's treachery.

Living near Boston, sixth-grader Emma tries to hide from family problems and changing friendships by spending the summer in Wyoming.

Jared, Simon, and Mallory Grace, have entered another world without leaving this one.